Machine room and machine room heat exchange system

Abstract

The utility model discloses a machine room heat exchange system which comprises a dry-wet combined outdoor cooler which can work in a dry working condition, a wet working condition and a dry-wet combined working condition and comprises an outdoor heat exchange channel, one end of the outdoor heat exchange channel is communicated with a plurality of liquid supply ports capable of being opened and closed independently, and the other end of the outdoor heat exchange channel is communicated with a plurality of liquid return ports. The indoor air cooling equipment is used for air cooling and is provided with an indoor air cooling heat exchange channel; the at least one indoor liquid cooling device is used for liquid cooling and is provided with an indoor liquid cooling heat exchange channel, and a plurality of liquid supply ports are connected with a liquid inlet port of the indoor air cooling heat exchange channel and a liquid inlet port of the indoor liquid cooling heat exchange channel respectively; the multiple liquid return ports are connected with the liquid outlet port of the indoor air cooling heat exchange channel and the liquid outlet port of the indoor liquid cooling heat exchange channel correspondingly. The computer room heat exchange system can effectively solve the problem that unified adaptation cannot be achieved when the types of the current computer room servers are uncertain. The utility model further discloses a machine room.

Description

Technical Field

[0001] The utility model relates to the field of server temperature control, and more specifically, to a heat exchange system for a computer room, and also to a computer room comprising the heat exchange system for the computer room. Background Art

[0002] Air-cooling air conditioning technology has gone through a century of development and is very mature. The limitation of air-cooling is that air cooling is greatly affected by the air channel space, and the outdoor cold source needs to be cooled by refrigerant or refrigerant for low-temperature liquid supply and heat exchange. With the improvement of computer capabilities, all the heat in the data center cannot be solved by air cooling alone, so the liquid cooling system has received widespread attention. In existing data centers, air cooling solutions are used for lower power consumption, and liquid cooling solutions are used for higher power consumption. Faced with the different replacement speeds of servers and the different power consumption requirements of business terminals, the existing solutions cannot solve the problem of intelligently putting air-cooled and liquid-cooled servers on the shelves at the same time and flexibly adjusting the heat dissipation solutions after putting them on the shelves.

[0003] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art: How to effectively solve the problem that the heat exchange system in the computer room cannot be uniformly adapted when the types of servers in the computer room are uncertain is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] In view of this, the first purpose of the utility model is to provide a computer room heat exchange system, which can effectively solve the problem that the computer room heat exchange system cannot be uniformly adapted when the types of servers in the computer room are uncertain; the second purpose of the utility model is to provide a computer room including the above-mentioned computer room heat exchange system.

[0005] In order to achieve the above first purpose, the utility model provides the following technical solutions:

[0006] A heat exchange system for a machine room, comprising:

[0007] A dry-wet combined outdoor cooler, which can work in dry conditions, wet conditions and dry-wet combined conditions, comprises an outdoor heat exchange channel, one end of which is connected to a plurality of liquid supply ports that can be opened and closed separately, and the other end of which is connected to a plurality of liquid return ports;

[0008] At least one indoor air cooling device, used for air cooling, having an indoor air cooling heat exchange channel;

[0009] At least one indoor liquid cooling device is used for liquid cooling and has an indoor liquid cooling heat exchange channel. A plurality of liquid supply ports are respectively connected to the liquid inlet port of the indoor air cooling heat exchange channel and the liquid inlet port of the indoor liquid cooling heat exchange channel, and a plurality of liquid return ports are respectively connected to the liquid outlet port of the indoor air cooling heat exchange channel and the liquid outlet port of the indoor liquid cooling heat exchange channel.

[0010] In the above-mentioned computer room heat exchange system, indoor air cooling equipment and indoor liquid cooling equipment are provided, and the same dry-wet combined outdoor cooler is used for cooling outdoors, so that the ratio between the indoor air cooling equipment and the indoor liquid cooling equipment can be adjusted as needed, and the coolant is uniformly supplied by the dry-wet combined outdoor cooler, and the liquid ratio can be uniformly adjusted so that air cooling and liquid cooling are uniformly cooled. In addition, liquid supply ports that can be opened and closed separately are provided, and the corresponding number of liquid supply ports can be selected according to the actual number. Therefore, the above-mentioned computer room heat exchange system can effectively solve the problem that the types of servers in the current computer room cannot be uniformly adapted when the types are uncertain.

[0011] In some technical solutions, a pressure stabilizing device and / or a liquid replenishing device for controlling the outdoor heat exchange channel is also provided.

[0012] In some technical solutions, the first temperature sensor, the cooling tower inlet switch valve, the automatic exhaust valve and the first pressure sensor are sequentially arranged at the inlet end of the outdoor heat exchange channel along the liquid inlet direction, and the liquid inlet end of the channel at the first temperature sensor is respectively connected to each of the liquid return ports;

[0013] The outlet end of the outdoor heat exchange channel is provided with a drain valve, a cooling tower outlet switch valve, a pressure-stabilizing liquid replenishing device, a second pressure sensor, a first switch valve, a filter, a reducing pipe, a circulating pump, an expanding pipe, a third pressure sensor and a second temperature sensor in sequence along the liquid outlet direction. The liquid outlet end of the channel at the second temperature sensor is connected to each of the liquid supply ports respectively.

[0014] In some technical solutions, the indoor air-cooling device includes a balancing valve, a filter, a first stop valve, a first soft interface component, the indoor air-cooling heat exchange channel, an electric switch valve, a second soft interface component and a second stop valve, which are sequentially arranged along the liquid flow direction, and the indoor air-cooling heat exchange channel is a heat exchange coil lumen;

[0015] The indoor liquid cooling device comprises a heat exchanger, and the heat exchanger comprises a primary side heat exchange channel and a secondary side heat exchange channel which can exchange heat with each other, the primary side heat exchange channel is the indoor liquid cooling heat exchange channel, the liquid outlet of the primary side heat exchange channel is provided with an automatic exhaust valve, an electric control switch valve, a flow meter, a fourth pressure sensor and a third temperature sensor in sequence along the liquid outlet direction, the liquid inlet of the primary side heat exchange channel is provided with a fifth pressure sensor, a fourth temperature sensor, a first butterfly valve, a sixth pressure sensor and a drain valve in sequence along the liquid inlet direction, a first filter channel which is provided in parallel with the first butterfly valve is provided between the sixth pressure sensor and the fourth temperature sensor, and the first filter channel is provided in parallel along the liquid inlet direction. A butterfly valve, a ball valve, a filter and a butterfly valve are arranged at the secondary side; the first external port, a pressure sensor, a flow meter, an expansion tank, a liquid replenishing device, a safety valve, a pressure sensor, a butterfly valve, a circulation pump, a butterfly valve, a pressure sensor and an automatic exhaust valve are arranged in sequence at the liquid inlet of the secondary side heat exchange channel along the liquid inlet direction; a drain valve, a sixth pressure sensor, a second butterfly valve, a seventh pressure sensor, a temperature sensor and a second external port are arranged in sequence at the liquid outlet of the secondary side heat exchange channel along the liquid outlet direction, a second filter channel arranged in parallel with the second butterfly valve is arranged between the sixth pressure sensor and the seventh pressure sensor, and the second filter channel is arranged with a butterfly valve, a filter, a ball valve and a butterfly valve in sequence along the liquid flow direction.

[0016] In some technical schemes, a flow distribution and adjustment device is also included to be able to separately adjust the fluid flow of each of the liquid supply ports; the air cooling equipment and the liquid cooling equipment are both provided with a monitoring system capable of obtaining heat exchange requirements, and the flow distribution and adjustment device can control the flow corresponding to the liquid supply port according to the heat exchange requirements.

[0017] In some technical solutions, the flow distribution and regulation device includes a flow regulating valve arranged at each of the liquid supply ports, and the monitoring system is used to monitor the temperature and / or pressure changes of the inlet and outlet fluids of the corresponding fluid channels, and form the corresponding heat exchange demand according to the size of the temperature difference and / or the pressure difference.

[0018] In some technical solutions, an upper BA system is also included, and the upper BA system can send flow regulation control instructions to the flow distribution and regulation device according to the operating performance requirements of the indoor air-cooling equipment and the operating performance requirements of the indoor liquid-cooling equipment.

[0019] In some technical schemes, at least one of the indoor air-cooling devices is one of a row air conditioner, a rack-mounted air conditioner, a computer room air conditioner, a wind wall and a back panel; at least one of the indoor liquid cooling devices is one of a rack-mounted CDU and a cabinet CDU; the dry-wet combined outdoor cooler includes a dry-wet combined closed cooling tower and / or a dry-wet combined dry cooler.

[0020] In order to achieve the above second purpose, the utility model also provides a computer room, which includes any of the above computer room heat exchange systems, including air-cooled servers and liquid-cooled servers, the air-cooled servers are provided with indoor air-cooled equipment of the computer room heat exchange system, and the liquid-cooled servers are provided with indoor air-cooled heat exchange equipment and indoor liquid-cooled heat exchange equipment of the computer room heat exchange system. Since the above computer room heat exchange system has the above technical effects, the computer room having the computer room heat exchange system should also have corresponding technical effects.

[0021] In order to achieve the above second purpose, the utility model also provides a computer room, which includes any of the above computer room heat exchange systems, including a liquid cooling server, and the liquid cooling server is provided with indoor air cooling heat exchange equipment and indoor liquid cooling heat exchange equipment of the computer room heat exchange system. Since the above computer room heat exchange system has the above technical effects, the computer room having the computer room heat exchange system should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of a heat exchange system for a machine room provided in an embodiment of the utility model;

[0024] Figure 2 A schematic diagram of the specific structure of a heat exchange system for a machine room provided in an embodiment of the utility model.

[0025] The following are marked in the accompanying drawings:

[0026] Dry-wet combined outdoor cooler 10, indoor air cooling equipment 20, indoor liquid cooling equipment 30;

[0027] Dry-wet combined closed cooling tower1, air-cooled indoor unit2, liquid-cooled cabinet CDU3,

[0028] Outdoor heat exchange channel 1-1, liquid supply port 1-2, liquid return port 1-3, pressure stabilizing liquid replenishing device 1-4;

[0029] Indoor air-cooled heat exchange channel 2-1, balancing valve 2-2, electric switch valve 2-3;

[0030] Indoor liquid cooling heat exchange channel 3-1, heat exchanger 3-2, secondary side heat exchange channel 3-3, first filter channel 3-4, second filter channel 3-5. DETAILED DESCRIPTION

[0031] The embodiment of the utility model discloses a heat exchange system for a computer room, so as to effectively solve the problem that the heat exchange system for a computer room cannot be uniformly adapted when the types of servers in the computer room are uncertain.

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-Figure 2 , Figure 1 A schematic diagram of the structure of a heat exchange system for a machine room provided in an embodiment of the utility model; Figure 2 A schematic diagram of the specific structure of a heat exchange system for a machine room provided in an embodiment of the utility model.

[0034] In some embodiments, a heat exchange system is provided, and specifically, it may be a machine room heat exchange system capable of achieving dynamic balance regulation of air and liquid.

[0035] In some embodiments, a heat exchange system is provided that can meet the needs of different customer groups. While satisfying the needs of customers to put different types of servers on the shelves, it can also intelligently adjust the air-to-liquid ratio in the computer room according to the servers after they are put on the shelves, thereby solving the problems of difficulty in putting servers on the shelves and flexibility of use for customers.

[0036] In some embodiments, a heat exchange system is provided that uses an energy-saving dry-wet combined outdoor cooler 10 as a cold source, which can be adjusted to dry conditions, wet conditions, or dry-wet combined conditions according to different seasonal climates outdoors, such as a dry-wet combined closed cooling tower 1, a dry-wet combined dry cooler, etc.

[0037] In some embodiments, an indoor air cooling device 20 is provided, which can be installed at a location where air cooling is required on an air-cooled server, or at a location where air cooling is required on a liquid-cooled server, such as one or more of an inter-row air conditioner, a rack-mounted air conditioner, a computer room air conditioner, a wind wall, and a back panel.

[0038] In some embodiments, an indoor liquid cooling device 30 is provided, which can be installed at a location of a liquid-cooled server that requires liquid cooling, such as a rack-type CDU or a cabinet-type CDU (cold liquid distribution unit).

[0039] In some embodiments, the computer room heat exchange system includes a dry-wet combined outdoor cooler 10, at least one indoor air-cooling device 20, and at least one indoor liquid-cooling device 30. The indoor air-cooling device 20 can be used to be installed in an air-cooled server, or it can be used to install a liquid-cooled server. At least when the computer room is equipped with both air-cooled servers and liquid-cooled servers, the computer room heat exchange system needs to be equipped with multiple indoor air-cooling devices 20 to be installed in the air-cooled servers and liquid-cooled servers respectively. The indoor liquid-cooling device 30 is installed in the liquid-cooled server. The characteristic of the indoor air-cooling device 20 is that the air can be cooled to achieve balanced cooling over a large area without dead ends; and the characteristic of the indoor liquid-cooling device 30 is that the cooling liquid is directed to the heat source to directly absorb heat, which is more targeted.

[0040] The dry-wet combined outdoor cooler 10 has an outdoor heat exchange channel 1-1, which can be used for air cooling, wet cooling, or both air cooling and wet cooling outdoors. For example, the dry condition mentioned above refers to cooling only by outdoor air, the wet condition refers to wet cooling outdoors to utilize the wet bulb temperature, and the dry-wet combined condition refers to wet cooling and dry cooling at the same time. If a heat exchange tube is set, the cavity of the heat exchange tube is the outdoor heat exchange channel 1-1, and the heat exchange tube passes through the air cooling zone and the wet cooling zone in sequence along the liquid flow direction or the opposite direction, or it can be divided into two branches to pass through the air cooling zone and the wet cooling zone respectively, and then converge. The air cooling zone and the wet cooling zone can be opened and closed separately.

[0041] One end of the outdoor heat exchange channel 1-1 is connected to a plurality of liquid supply ports 1-2 that can be opened and closed separately, and the other end is connected to a plurality of liquid return ports 1-3. Generally, the liquid supply ports 1-2 and the liquid return ports 1-3 are set one by one, or they can be set separately one by one. The liquid supply port 1-2 can be opened and closed separately, and the opening and closing method can be realized by a simple switch valve or by a flow valve. The characteristic of the flow valve is that it can not only open and close, but also adjust the flow rate. Of course, the liquid return port 1-3 can also be opened and closed separately. When connected, part of the liquid supply port 1-2 and the corresponding liquid return port 1-3 can be opened as needed to supply liquid to the heat exchange equipment partially connected to the liquid supply port 1-2, and the liquid after heat exchange can return to the dry-wet combined outdoor cooler 10 from the liquid return port 1-3. The liquid return port 1-3 and the liquid supply port 1-2 can use an automatic opening and closing connector to automatically open the internal passage when connected and automatically close the passage when disassembled.

[0042] At least one indoor air cooling device 20 is used for air cooling and has an indoor air cooling heat exchange channel 2-1; at least one indoor liquid cooling device 30 is used for liquid cooling and has an indoor liquid cooling heat exchange channel 3-1. A plurality of liquid supply ports 1-2 are respectively connected to the liquid inlet port of the indoor air cooling heat exchange channel 2-1 and the liquid inlet port of the indoor liquid cooling heat exchange channel 3-1, and a plurality of liquid return ports 1-3 are respectively connected to the liquid outlet port of the indoor air cooling heat exchange channel 2-1 and the liquid outlet port of the indoor liquid cooling heat exchange channel 3-1, that is, the indoor air cooling device 20 and the indoor liquid cooling device 30 are respectively connected to different liquid supply ports 1-2, so that liquid is supplied by different liquid supply ports 1-2. When there are multiple indoor air-cooling devices 20, all or part of the indoor air-cooling devices 20 can be connected to different liquid supply ports 1-2 and different liquid return ports 1-3, or all or part of the indoor air-cooling devices 20 can be connected to the same liquid supply port 1-2 and the same liquid return port 1-3; when there are multiple indoor liquid cooling devices 30, all or part of the indoor liquid cooling devices 30 can be connected to different liquid supply ports 1-2 and different liquid return ports 1-3, or all or part of the indoor liquid cooling devices 30 can be connected to the same liquid supply port 1-2 and the same liquid return port 1-3. Specifically, it can be set as needed. The number of indoor air-cooling devices 20 and the number of indoor liquid cooling devices 30 can be determined according to the number of liquid-cooled servers and the number of air-cooled servers in the computer room.

[0043] In the above-mentioned computer room heat exchange system, indoor air cooling equipment 20 and indoor liquid cooling equipment 30 are provided, and the same dry-wet combined outdoor cooler 10 is used for cooling outdoors, so that the ratio between the indoor air cooling equipment 20 and the indoor liquid cooling equipment 30 can be adjusted as needed, and the coolant is uniformly supplied by the dry-wet combined outdoor cooler 10, and the liquid ratio can be uniformly adjusted so that air cooling and liquid cooling are uniformly cooled. In addition, liquid supply ports 1-2 that can be opened and closed separately are provided, and the corresponding number of liquid supply ports 1-2 can be selected according to the actual number. Therefore, the above-mentioned computer room heat exchange system can effectively solve the problem that the current computer room server types cannot be uniformly adapted when the types are uncertain.

[0044] In some embodiments, considering the uncertainty of the number of heat exchange devices connected to the system, such as a large change in the number of liquid supply ports 1-2 opened in a certain period of time, or a large change in the total flow rate, the pressure of the entire system will be unbalanced. Based on this, it is preferred that a pressure stabilizing device and / or a liquid replenishing device for controlling the outdoor heat exchange channel 1-1 is also provided, that is, only a pressure stabilizing device or a liquid replenishing device can be provided, or both a pressure stabilizing device and a liquid replenishing device can be provided, preferably both a pressure stabilizing device and a liquid replenishing device are provided.

[0045] In some embodiments, in order to better monitor the liquid conditions at the inlet and outlet of the outdoor heat exchange channel 1-1. Here, it is preferred that at the inlet end of the outdoor heat exchange channel 1-1: a first temperature sensor is provided to detect the return liquid temperature, so that the working condition of the dry-wet combined outdoor cooler 10 and the working power under the condition can be selected according to the return liquid temperature; a cold tower inlet switch valve is also provided to facilitate maintenance according to actual conditions; an automatic exhaust valve is also provided, considering that the return liquid temperature is too high, there is some gas evaporation, which affects the later air cooling and dry cooling effects, and affects the gas flow, as well as the pressure changes in the pipeline, and exhausting the gas can effectively avoid these problems; a first pressure sensor is also provided to detect whether the return liquid pressure is uniform, so that timely maintenance can be carried out. Specifically, the first temperature sensor, the cold tower inlet switch valve, the automatic exhaust valve and the first pressure sensor can be arranged in sequence along the liquid inlet direction at the inlet end of the outdoor heat exchange channel 1-1, and the channel liquid inlet end at the first temperature sensor is connected to each return liquid port 1-3 respectively, and the pressure is detected after exhausting, which can ensure that the pressure detection is more accurate.

[0046] Here, preferably at the inlet end of the outdoor heat exchange channel 1-1: a drain valve, so that the liquid can be effectively discharged when the pressure is too high, or it can be discharged when the internal liquid is replaced. It can be a manual drain valve or an electric drain valve to facilitate remote control; a pressure-stabilizing and liquid-replenishing device 1-4, that is, it also includes a pressure-stabilizing device and a liquid-replenishing device, wherein the pressure-stabilizing device is such as a pressure-stabilizing tank, and the liquid-replenishing device includes a liquid-replenishing water tank, a butterfly valve, a filter, a liquid-replenishing water pump, and a butterfly valve arranged in sequence to connect to the main road; a pressure sensor to detect the pressure after cooling, which mainly plays a monitoring role, especially after liquid replenishment; a filter to filter the cooled medium, which can better filter out particulate matter; a circulating pump to ensure the operation of the liquid system.

[0047] Specifically, the outlet end of the outdoor heat exchange channel 1-1 may be provided with a drain valve, a cold tower outlet switch valve, the pressure-stabilizing liquid replenishing device 1-4, a second pressure sensor, a first switch valve, a filter, a reducing pipe, a circulating pump, an expanding pipe, a third pressure sensor and a second temperature sensor in sequence along the liquid outlet direction. The liquid outlet end of the channel at the second temperature sensor is connected to each of the liquid supply ports 1-2. Pressure sensors are provided before and after the circulating pump. The second pressure sensor is used to monitor the pressure after liquid replenishment, and the third pressure sensor is used to monitor the working condition of the circulating pump. A filter and a circulating pump are provided between the two butterfly valves for easy maintenance. The second temperature sensor is provided to better monitor the liquid supply condition, so that the working condition of the dry-wet combined outdoor cooler 10 can be controlled according to the second temperature sensor, and can be controlled in combination with the first temperature sensor.

[0048] In some embodiments, the indoor air-cooling device 20 may include: a balancing valve 2-2 arranged at the inlet end of the indoor air-cooling heat exchange channel 2-1 to ensure the overall system balance; a filter that can further perform corresponding filtering according to the indoor air-cooling heat exchange channel 2-1 to avoid excessive working pressure of the filter at the dry-wet combined outdoor cooler 10 to affect the entire liquid supply; a soft interface that facilitates position adjustment for easy connection. The indoor air-cooling device 20 may include an electric switch valve 2-3 arranged at the outlet end of the indoor air-cooling heat exchange channel 2-1 to remotely control whether the indoor air-cooling device 20 is working.

[0049] Specifically, the indoor air-cooling device 20 can include a balancing valve 2-2, a filter, a first stop valve, a first soft interface component, the indoor air-cooling heat exchange channel 2-1, an electric switch valve 2-3, a second soft interface component and a second stop valve, which are arranged in sequence along the liquid flow direction. The first stop valve and the second stop valve are mainly used for disassembly and assembly of the indoor air-cooling device 20, and the electric switch valve 2-3 is used for remote control of use or non-use for a certain period of time. The indoor air-cooling heat exchange channel 2-1 is a heat exchange coil cavity; according to the heat exchange needs, multiple heat exchange coils can be arranged, which are connected in parallel and / or in series.

[0050] In some embodiments, the indoor liquid cooling device can directly supply liquid to the heat source, or a secondary heat exchange can be set up, or one or more heat source heat exchange channels can be connected to the indoor liquid cooling device according to the change in the number of heat sources.

[0051] The secondary heat exchange may include a heat exchanger 3-2, wherein the heat exchanger 3-2 includes a primary side heat exchange channel and a secondary side heat exchange channel 3-3 that can exchange heat with each other, wherein the primary side heat exchange channel is an indoor liquid cooling heat exchange channel 3-1, and both ends of the secondary side heat exchange channel 3-3 are respectively connected to external ports to be used for connecting the heat exchange channel of the heat source.

[0052] The liquid outlet of the primary side heat exchange channel is equipped with: an automatic exhaust valve to discharge the gas formed in the liquid after absorbing heat first, because the temperature of the liquid cooling channel is generally high and it is easier to generate gas; a flow meter, considering the exhaust changes, and the liquid cooling is closely related to the flow rate, the flow meter can be set to more comprehensively monitor its flow rate changes; a pressure sensor and a temperature sensor to better understand the changes in the outlet temperature and pressure. Specifically, the liquid outlet of the primary side heat exchange channel is equipped with an automatic exhaust valve, an electric control switch valve, a flow meter, a fourth pressure sensor and a third temperature sensor in sequence along the liquid outlet direction.

[0053] The liquid inlet of the primary side heat exchange channel is provided with: a switch valve and a filter arranged in parallel, the switch valve is the first butterfly valve, because the filter will affect the fluid pressure, and the liquid cooling heat exchange needs to be timely heat exchange, and the heat exchange response requirement is relatively high. Therefore, when the heat exchange demand is large or the filter is seriously blocked, it is necessary to directly open the switch valve to avoid the filter to ensure timely flow response; pressure sensors are arranged at both ends of the filter to monitor the filter filtering situation, so as to facilitate timely adjustment. When the pressure difference at both ends is relatively large, it is necessary to open the switch valve in time. Specifically, the fifth pressure sensor, the fourth temperature sensor, the first butterfly valve, the sixth pressure sensor and the drain valve can be arranged at the liquid inlet of the primary side heat exchange channel in sequence along the liquid inlet direction, and the first filter channel 3-4 arranged in parallel with the first butterfly valve is arranged between the sixth pressure sensor and the fourth temperature sensor, and the first filter channel 3-4 is arranged in parallel with the first butterfly valve in sequence along the liquid inlet direction.

[0054] The liquid inlet of the secondary side heat exchange channel 3-3 is provided with: a flow meter to monitor the flow rate to ensure that the flow rate meets the requirements and thus ensures the heat exchange efficiency; an expansion tank to ensure pressure balance to avoid damage to the heat source heat exchange channel; a liquid replenishment device, such as a liquid replenishment tank, a liquid replenishment pump, etc., to facilitate liquid replenishment; a circulating pump for circulating the secondary side liquid; a pressure sensor to ensure pressure balance; an automatic exhaust valve to discharge the gas in the liquid after absorbing heat to ensure pressure balance. Specifically, the liquid inlet of the secondary side heat exchange channel 3-3 is provided with a first external port, a pressure sensor, a flow meter, an expansion tank, a liquid replenishment device, a safety valve, a pressure sensor, a butterfly valve, a circulating pump, a butterfly valve, a pressure sensor, and an automatic exhaust valve in sequence along the liquid inlet direction.

[0055] The outlet of the secondary heat exchange channel 3-3 is provided with: a switch valve and a filter arranged in parallel, also to ensure flow balance. Specifically, a drain valve, a sixth pressure sensor, a second butterfly valve, a seventh pressure sensor, a temperature sensor and a second external port can be arranged in sequence along the liquid outlet direction, and a second filter channel 3-5 arranged in parallel with the second butterfly valve is arranged between the sixth pressure sensor and the seventh pressure sensor, and the second filter channel 3-5 is arranged in sequence along the liquid flow direction with a butterfly valve, a filter, a ball valve and a butterfly valve. The exhaust valve is generally set at the highest position of the current channel, and the drain valve is generally set at the lowest position of the current channel.

[0056] In some embodiments, a flow distribution adjustment device is generally included to be able to adjust the fluid flow of each liquid supply port 1-2 separately. The specific adjustment can be made according to the set flow requirements, or it can be dynamically floatingly adjusted according to the cooling conditions of the air cooling equipment and the liquid cooling equipment.

[0057] In some embodiments, it is preferred that both the air cooling device and the liquid cooling device are provided with a monitoring system capable of obtaining heat exchange requirements, so that the flow distribution and adjustment device can control the flow corresponding to the liquid supply port 1-2 according to the heat exchange requirements to achieve online dynamic adjustment.

[0058] The heat exchange requirement can be calculated based on the power consumption of the current system or based on the temperature change. The flow distribution regulating device can be controlled by a flow valve or by adjusting the pressure difference.

[0059] In some embodiments, the flow distribution and adjustment device may include a flow regulating valve disposed at each of the liquid supply ports 1-2. The monitoring system may be used to monitor the temperature and / or pressure changes of the inlet and outlet fluids of the corresponding fluid channels, and the corresponding heat exchange requirements may be formed according to the temperature difference and / or pressure difference.

[0060] In some embodiments, an upper BA system is also included, and the upper BA system can send flow regulation control instructions to the flow distribution and regulation device according to the operating performance requirements of the indoor air cooling device 20 and the indoor liquid cooling device 30, so as to ensure that each system in the computer room operates more evenly.

[0061] In some embodiments, at least one of the indoor air-cooling devices 20 is one of a row air conditioner, a rack air conditioner, a computer room air conditioner, a wind wall, and a back panel.

[0062] In some embodiments, at least one of the indoor liquid cooling devices 30 is a rack-type CDU or a cabinet-type CDU.

[0063] In some embodiments, the dry-wet combined outdoor cooler 10 includes a dry-wet combined closed cooling tower 1 and / or a dry-wet combined dry cooler. When the dry-wet combined closed cooling tower 1 and the wet combined dry cooler are provided at the same time, the two can be connected in parallel or in series.

[0064] In some embodiments, a heat exchange system is provided to solve the problem of mixed server racking and dynamic adjustment of air-liquid ratio. The indoor air cooling device 20 and the indoor liquid cooling device 30 use the same outdoor cold source system to make air cooling and liquid cooling compatible, which can bring many advantages in the control and early planning stages.

[0065] In some embodiments, the indoor liquid cooling device 30 is used to remove the heat from the highest density GDP or CDP chip of the liquid-cooled server, and the heat of the remaining electrical components in the liquid-cooled server is removed by air cooling. In the traditional air cooling solution, the air supply temperature is not higher than 30°C, while the liquid supply temperature in the cold plate liquid cooling system computer room is generally around 40°C. The air temperature in the traditional air-cooled computer room is lower than the liquid temperature. Putting liquid-cooled servers on the shelves easily causes condensation in the liquid cooling pipelines in the computer room. Therefore, generally, air-cooled computer rooms only put air-cooled servers on the shelves, which limits the flexibility of putting servers on the shelves in the computer room.

[0066] In some embodiments, considering that air cooling equipment and liquid cooling equipment are used simultaneously in the heat exchange system of the computer room, the dynamic adjustment performance of air and liquid is a pain point requirement in most data center technology fields at this stage.

[0067] Based on this, a computer room heat exchange system is provided that can realize dynamic balance adjustment of air and liquid. In the computer room, according to actual needs, a mixture of air-cooled servers and liquid-cooled servers, only air-cooled servers, or only liquid-cooled servers can be installed. The entire computer room adopts a modular configuration concept, and the air and liquid share a set of dry-wet combined outdoor coolers 10, such as energy-saving and suitable for more regions. Dry-wet combined closed cooling towers 1, dry-wet combined dry coolers, etc. are adopted. The indoor air-cooling equipment 20 can select inter-row air conditioners, rack air conditioners, computer room air conditioners, wind walls and back panels, etc., and the indoor liquid cooling equipment 30 can select rack-type CDU, cabinet-type CDU, etc.; according to actual project needs, the air cooling equipment and liquid cooling equipment are modularly set. When the computer room is in operation, if the type of server on the shelf needs to be changed, the flow distribution on the cold source side can be adjusted to dynamically adjust the air-liquid ratio in the computer room without changing any equipment.

[0068] In some embodiments, Figure 2 It is a specific example of a heat exchange system in a computer room, including a heat dissipation device, an air-cooled indoor unit 2, and a liquid-cooled cabinet CDU 3, wherein the heat dissipation device is a dry-wet combined outdoor cooler 10, wherein the air-cooled indoor unit 2 is an indoor air-cooled device 20, and wherein the liquid-cooled cabinet CDU 3 is an indoor liquid-cooled device 30. The air-cooled indoor unit 2 and the liquid-cooled cabinet CDU 3 are modular devices, and the number is flexibly adjustable in the entire heat dissipation solution; the air-cooled indoor unit 2 and the liquid-cooled cabinet CDU 3 are a series of modular devices, and the cooling capacity range (0-2000kW) is optional in the early design stage, and different cooling capacity segments of the same type of equipment can be flexibly used.

[0069] In some embodiments, the computer room heat exchange system may have at least the following two scenarios.

[0070] Scenario 1: Put air-cooled servers and liquid-cooled servers on the shelves. The air-cooled indoor unit 2 takes away the heat of all air-cooled servers and some liquid-cooled servers. The cold plate connected to the indoor liquid cooling device 30 takes away the heat of the highest density GDP or CDP chip of the liquid-cooled server. The heat of the remaining liquid-cooled server electrical components is taken away by the indoor air-cooling device 20. For example, the air-liquid ratio of the computer room is first selected as 3:7. The air-cooled indoor unit 2 takes away 30% of the heat dissipation demand of the liquid-cooled server, and the liquid-cooled cabinet CDU3 takes away the heat of the highest density GDP or CDP chip of the liquid-cooled server. The dry-wet combined closed cooling tower 1 transfers heat to the outdoors for the air-cooled indoor unit 2 and the liquid-cooled cabinet CDU3 at the same time.

[0071] Scenario 2: Only liquid-cooled servers are put on the shelves, and the air-cooled indoor unit 2 takes away part of the heat of the liquid-cooled servers, while the cold plate connected to the indoor liquid-cooling device 30 takes away the heat from the liquid-cooled server's highest-density GDP or CDP chip, and the heat of the remaining liquid-cooled server electrical components is taken away by the indoor air-cooling device 20; for example, the air-liquid ratio of the computer room is first selected as 3:7, the air-cooled indoor unit 2 takes away 30% of the heat dissipation demand of the liquid-cooled server, the liquid-cooled cabinet CDU3 takes away the heat from the liquid-cooled server's highest-density GDP or CDP chip, and the dry-wet combined closed cooling tower 1 transfers heat to the outdoors for the air-cooled indoor unit 2 and the liquid-cooled cabinet CDU3;

[0072] In both scenarios, no matter which scenario is used, it is found during operation that the cold plate connected to the indoor liquid cooling device 30 takes away the heat from the liquid-cooled server's highest-density GDP or CDP chip, and the heat from the remaining liquid-cooled server electrical components is taken away by the indoor air-cooling device 20; for example, first the air-liquid ratio of the computer room is selected to be 3:7, and the air-cooled indoor unit 2 takes away 30% of the heat dissipation demand of the liquid-cooled server.

[0073] When the air-liquid ratio is not suitable for the current scenario and needs to be changed, there is no need to change the heat dissipation equipment. The coolant system allocated to the air-cooled indoor units 2 and 3 and the liquid-cooled cabinet CDU 3 can be regulated by the dry-wet combined outdoor cooler 10, thereby realizing the demand for flexible change of the air-liquid ratio.

[0074] When the front-end business needs change, and the computer room needs to mix different air- and liquid-cooled servers, the number of air-cooling and liquid-cooling equipment can be flexibly increased or decreased, or the air-cooling output (or liquid-cooling output) can be reduced through intelligent regulation. While meeting the heat exchange capacity of the computer room, the layout of the equipment in the computer room can be changed to the minimum extent, which also solves the problem of difficulty in putting up air cooling and liquid cooling at the same time.

[0075] In the actual use of the heat dissipation in the computer room, when the changes in business requirements lead to the need to start more air-cooled servers instead of high-power liquid-cooled servers, and when the existing equipment layout of the computer room is not changed, the air-cooled equipment and the liquid-cooled equipment are each equipped with a monitoring system to monitor the heat exchange required on the secondary side. At the same time, the flow distribution adjustment device regulates the cooling capacity allocated to the air-cooled equipment and the liquid-cooled equipment, changes the air-liquid ratio on the computer room side, and sets an upper-level BA system (equipment automatic control system) on the system of the entire computer room to monitor the performance optimization and intelligent regulation between each device;

[0076] When the server type is put on the shelf or actually used, it can simultaneously accommodate different air and fluid requirements, intelligently perform dynamic balance adjustment of the air and fluid in the computer room, and at the same time achieve the best energy efficiency adjustment effect of the computer room through the above solutions.

[0077] Based on the computer room heat exchange system provided in the above embodiment, the utility model also provides a computer room heat exchange method, which includes the following steps: connecting the liquid cooling channels in the liquid cooling equipment and the air cooling equipment in the computer room to the same dry-wet combined outdoor cooler 10; obtaining the first heat exchange requirement of the liquid cooling equipment and the second heat exchange requirement in the liquid cooling channel of the air cooling equipment, and controlling the fluid flow entering the liquid cooling equipment according to the first heat exchange requirement and the fluid flow entering the fluid channel in the air cooling equipment according to the second heat exchange requirement. Since the computer room heat exchange method adopts the same heat exchange method as the computer room heat exchange system in the above embodiment, please refer to the above embodiment for the beneficial effects of the computer room heat exchange method. How to obtain the first heat exchange requirement and the second heat exchange requirement can refer to the above embodiment, and how to control the flow according to the heat exchange requirement can also refer to the above embodiment.

[0078] Based on the computer room heat exchange system provided in the above embodiments, the utility model further provides a computer room, the computer room heat exchange method includes any of the above computer room heat exchange systems, including an air-cooled server and a liquid-cooled server, the air-cooled server is provided with an indoor air-cooled device 20 of the computer room heat exchange system, and the liquid-cooled server is provided with an indoor air-cooled heat exchange device and an indoor liquid-cooled heat exchange device of the computer room heat exchange system. Since the computer room adopts the computer room heat exchange system in the above embodiments, please refer to the above embodiments for the beneficial effects of the computer room.

[0079] Based on the computer room heat exchange system provided in the above embodiments, the utility model further provides a computer room, the computer room heat exchange method includes any of the above computer room heat exchange systems, including a liquid cooling server, the liquid cooling server is provided with an indoor air cooling heat exchange device and an indoor liquid cooling heat exchange device of the computer room heat exchange system. Since the computer room adopts the computer room heat exchange system in the above embodiments, please refer to the above embodiments for the beneficial effects of the computer room.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0081] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat exchange system for a machine room, characterized in that: include: A dry-wet combined outdoor cooler, which can work in dry conditions, wet conditions and dry-wet combined conditions, comprises an outdoor heat exchange channel, one end of which is connected to a plurality of liquid supply ports that can be opened and closed separately, and the other end of which is connected to a plurality of liquid return ports; At least one indoor air cooling device, used for air cooling, having an indoor air cooling heat exchange channel; At least one indoor liquid cooling device is used for liquid cooling and has an indoor liquid cooling heat exchange channel. A plurality of liquid supply ports are respectively connected to the liquid inlet port of the indoor air cooling heat exchange channel and the liquid inlet port of the indoor liquid cooling heat exchange channel, and a plurality of liquid return ports are respectively connected to the liquid outlet port of the indoor air cooling heat exchange channel and the liquid outlet port of the indoor liquid cooling heat exchange channel.

2. The machine room heat exchange system according to claim 1, characterized in that: A pressure stabilizing device and / or a liquid replenishing device for controlling the outdoor heat exchange channel is also provided.

3. The machine room heat exchange system according to claim 1, characterized in that: A first temperature sensor, a cooling tower inlet switch valve, an automatic exhaust valve and a first pressure sensor are sequentially arranged at the inlet end of the outdoor heat exchange channel along the liquid inlet direction, and the liquid inlet end of the channel at the first temperature sensor is connected to each of the liquid return ports respectively; The outlet end of the outdoor heat exchange channel is provided with a drain valve, a cooling tower outlet switch valve, a pressure-stabilizing liquid replenishing device, a second pressure sensor, a first switch valve, a filter, a reducing pipe, a circulating pump, an expanding pipe, a third pressure sensor and a second temperature sensor in sequence along the liquid outlet direction. The liquid outlet end of the channel at the second temperature sensor is connected to each of the liquid supply ports respectively.

4. The machine room heat exchange system according to claim 3, characterized in that: The indoor air-cooling device comprises a balancing valve, a filter, a first stop valve, a first soft interface component, the indoor air-cooling heat exchange channel, an electric switch valve, a second soft interface component and a second stop valve which are sequentially arranged along the liquid flow direction, and the indoor air-cooling heat exchange channel is a heat exchange coil lumen; The indoor liquid cooling device comprises a heat exchanger, and the heat exchanger comprises a primary side heat exchange channel and a secondary side heat exchange channel which can exchange heat with each other, the primary side heat exchange channel is the indoor liquid cooling heat exchange channel, the liquid outlet of the primary side heat exchange channel is provided with an automatic exhaust valve, an electric control switch valve, a flow meter, a fourth pressure sensor and a third temperature sensor in sequence along the liquid outlet direction, the liquid inlet of the primary side heat exchange channel is provided with a fifth pressure sensor, a fourth temperature sensor, a first butterfly valve, a sixth pressure sensor and a drain valve in sequence along the liquid inlet direction, a first filter channel which is provided in parallel with the first butterfly valve is provided between the sixth pressure sensor and the fourth temperature sensor, and the first filter channel is provided in parallel along the liquid inlet direction. A butterfly valve, a ball valve, a filter and a butterfly valve are arranged at the secondary side; the first external port, a pressure sensor, a flow meter, an expansion tank, a liquid replenishing device, a safety valve, a pressure sensor, a butterfly valve, a circulation pump, a butterfly valve, a pressure sensor and an automatic exhaust valve are arranged in sequence at the liquid inlet of the secondary side heat exchange channel along the liquid inlet direction; a drain valve, a sixth pressure sensor, a second butterfly valve, a seventh pressure sensor, a temperature sensor and a second external port are arranged in sequence at the liquid outlet of the secondary side heat exchange channel along the liquid outlet direction, a second filter channel arranged in parallel with the second butterfly valve is arranged between the sixth pressure sensor and the seventh pressure sensor, and the second filter channel is arranged with a butterfly valve, a filter, a ball valve and a butterfly valve in sequence along the liquid flow direction.

5. The machine room heat exchange system according to claim 1, characterized in that: It also includes a flow distribution and adjustment device to be able to separately adjust the fluid flow of each of the liquid supply ports; the air cooling device and the liquid cooling device are both provided with a monitoring system capable of obtaining heat exchange requirements, and the flow distribution and adjustment device can control the flow corresponding to the liquid supply port according to the heat exchange requirements.

6. The machine room heat exchange system according to claim 5, characterized in that: The flow distribution and regulation device includes a flow regulating valve arranged at each of the liquid supply ports, and the monitoring system is used to monitor the temperature and / or pressure changes of the inlet and outlet fluids of the corresponding fluid channels, and form the corresponding heat exchange demand according to the size of the temperature difference and / or the pressure difference.

7. The machine room heat exchange system according to claim 6, characterized in that: It also includes an upper BA system, which can send flow regulation control instructions to the flow distribution and regulation device according to the operating performance requirements of the indoor air-cooling equipment and the operating performance requirements of the indoor liquid-cooling equipment.

8. The machine room heat exchange system according to any one of claims 1 to 7, characterized in that: At least one of the indoor air-cooling devices is a row air conditioner, a rack air conditioner, a computer room air conditioner, a wind wall and a back panel; at least one of the indoor liquid cooling devices is a rack CDU or a cabinet CDU; the dry-wet combined outdoor cooler includes a dry-wet combined closed cooling tower and / or a dry-wet combined dry cooler.

9. A computer room, including air-cooled servers and liquid-cooled servers, characterized in that: It comprises the computer room heat exchange system as described in any one of claims 1 to 8, the air-cooled server is provided with indoor air-cooling equipment of the computer room heat exchange system, and the liquid-cooled server is provided with indoor air-cooling heat exchange equipment and indoor liquid-cooling heat exchange equipment of the computer room heat exchange system.

10. A computer room, comprising a liquid-cooled server, characterized in that: It comprises the computer room heat exchange system as described in any one of claims 1 to 8, wherein the liquid-cooled server is provided with indoor air-cooled heat exchange equipment and indoor liquid-cooled heat exchange equipment of the computer room heat exchange system.

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